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Home » Gluten-Free Baking » Gluten-Free Biscuits and Cookies » Gluten-Free Shortbread {no xanthan gum}

Gluten-Free Shortbread {no xanthan gum}

By Georgina Hartley  •  Published May 15, 2019  •  Updated January 7, 2022

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Pin image of gluten-free shortbread showing it plain cut into triangles then stacked and drizzled with chocolate and caramel. Title text in between

This Gluten-Free Shortbread recipe is the melt in mouth buttery biscuit with a touch of crunch that you know and love. A classic Scottish recipe which uses oat flour, cornmeal and tapioca flour for a wonderful taste and texture with no xanthan gum. It’s incredibly quick to make and so versatile that you can adapt it to endless flavour variations.

Gluten-free shortbread on a wooden board cut into pieces this recipe

The quest for the perfect Gluten-Free Shortbread was not one undertaken lightly. I have an absolute weakness for shortbread and dearly missed it when I switched to a gluten-free diet. Although humble in origin, the beautiful buttery taste of shortbread elevates the confection to a more special status than mere biscuit or cookie.

The right flour combination for this particular bake eluded me for a long time. I threw myself a mini party when achieving this final version. It ticks all the boxes to create the perfect shortbread in taste and texture.

Table of contents

  • What is shortbread?
  • Why you'll love this recipe
  • Watch to see how to make it
  • Gluten-free flours needed
    • Oat flour
    • Cornmeal
    • Tapioca Flour
  • How do you make gluten-free shortbread without oat flour?
  • Full list of ingredients
  • Step by step instructions
  • Baker’s Tips
  • Shop the recipe
  • Gluten-Free Shortbread flavour variations
    • Chocolate Caramel Shortbread
    • Other ideas
  • Serving suggestions for shortbread
  • Other classic gluten-free British recipes:

What is shortbread?

Shortbread is a traditional Scottish confection made with sugar, butter and flour. The earliest printed recipe is credited to a Mrs McLintock in 1736. However, the first versions as a bread dough to which melted butter was added can be traced back to medieval times.

Shortbread needs to have a beautiful buttery taste and a slight bite upfront that gives way to a sandy crumb. In modern versions white rice flour is often included to encourage the crunch. Conversely cornflour is sometimes added to accentuate a soft sandy texture.

Shortbread is so much more than a humble biscuit. In fact its national status as a ‘speciality item of flour confectionary’ was fought vehemently by the Scottish Association of Master Bakers so that it would not be taxed as a biscuit. It is often gifted at Christmas in decorative tins and certainly not out of place at high tea.

Why you'll love this recipe

  • Perfect toasted buttery flavour.
  • Soft texture with a touch of crunch and slight crumble
  • So easy to make with just 3 gluten-free flours and 4 other ingredients.
  • Ultra quick. 10 minutes of hands on work then just 30 minutes in the oven.
  • No xanthan gum - it's not needed thanks to our carefully chosen blend of gluten-free flours. READ MORE >>> Why I don't bake with xanthan gum

Watch to see how to make it

Gluten-free flours needed

Three bowls of gluten-free flours

After many recipe tests where the shortbread was either too crumbly, too gummy or not enough bite I eventually discovered the perfect 3 flour blend for this recipe:

Oat flour

Gluten-free oat flour is used for its light tender crumb and delicious butterscotch taste which works beautifully with the butter and vanilla.

Oat flour substitution: Usually I might suggest a substitute as even gluten-free oat flour can be difficult to digest for hardcore intolerances. However, if this is the case for you I would like to point you towards a slightly different flour combination (scroll further down to see).

Cornmeal

In regular shortbread the wheat flour can be cut with white rice flour to add crunch. I found without the wheat flour to temper it the white rice flour made the shortbread claggy. Cornmeal is an excellent substitution. I found a very fine white cornmeal which worked well here but any cornmeal will do. The courser the grind though the more definitive the crunch. Note. polenta is a course grind cornmeal

Tapioca Flour

This is the starch we need to stop our shortbread from crumbling apart.

How do you make gluten-free shortbread without oat flour?

If you can’t tolerate oat flour then I recommend a slightly different flour combination. It is just as delicious but the bite of the shortbread is not as short. The recipe and ingredients list are exactly the same except remove the oat flour and tapioca flour. Instead use:

  • 175g almond flour
  • 150g very fine white cornmeal

Note that this version doesn’t need any starch. The almond flour has enough protein to hold the shortbread together.

Full list of ingredients

  • Oat flour
  • Cornmeal
  • Tapioca flour
  • Butter
  • Caster sugar
  • Vanilla extract
  • Salt

Step by step instructions

For full recipe instructions go to the recipe card at the end of this post. 

Shortbread is a minimal effort type of bake. It takes about 10 minutes to mix all the ingredients together and only 30 minutes in the oven.

  1. Beat the butter and sugar until light and fluffy.
  2. Add the vanilla extract.
  3. Sift the flours together with the salt then beat in.
  4. Press into a cake tin.
  5. Bake for 30 minutes.
  6. Leave to cool in the tin for an hour before removing onto a wire rack to finish cooling.
Process shots for gluten-free shortbread. showing the butter and sugar in a bowl and then mixed up
Process shots for gluten-free shortbread. showing the dough in the mixing bowl and then in the cake tin ready for the oven.

Baker’s Tips

  • Use the best unsalted butter you can find. It really makes a difference as this is the overriding flavour of your shortbread.
  • Use the best quality vanilla extract. I like Nielsen Massey here.
  • Gluten-free shortbread won’t brown too much. This is correct, you want it to be quite pale with a slight nod towards going golden. However if you are using yellow cornmeal rather than white then it will colour slightly more.
  • If your scoring has disappeared during the bake then re-score lightly in its tin as soon as it comes out of the oven, be careful as it's very crumbly at this stage.
  • Leave the shortbread in the tin as long as possible. I recommend at least an hour but I have been known to place it in its tin straight into the fridge from the oven to cool and remove from the tin a couple of hours later ready to cut.
  • Leave the shortbread to cool completely before cutting. Otherwise it has a tendency to crumble. The shortbread will firm up as it cools.

Shop the recipe

Image of Gluten-Free Oat Flour

Gluten-Free Oat Flour

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Image of Tapioca Starch

Tapioca Starch

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Image of Digital Weighing Scales

Digital Weighing Scales

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Image of 8in Cake Tin

8in Cake Tin

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Gluten-Free Shortbread flavour variations

Plain unadorned shortbread is delicious as it is but if you wanted to jazz it up slightly then let’s go for it.

Chocolate Caramel Shortbread

Here the shortbread is drizzled with 2 tablespoons melted dark chocolate, 2 tablespoons dulce de leche and a crumble of sea salt. The dulce de leche is warmed up slightly to make for easy drizzling.

Gluten-free shortbread drizzled with chocolate and dulce de leche on wooden board

Other ideas

If chocolate and caramel aren’t your thing then there are so many other routes you can go. The earliest versions of shortbread included preserved lemon, orange peel, nuts and caraway seeds. All of which would be delicious. Here are some other suggestions to add to your dough before baking.

  • Lemon Shortbread – zest 1 lemon
  • Lavender Shortbread – 2 tablespoons of fresh chopped lavender flowers
  • Strawberry Black Pepper Shortbread - 3 tablespoons of freeze-dried strawberry powder and ¼ teaspoon of cracked black pepper.
  • Ginger Shortbread – 2 tablespoons diced stem ginger and 1 teaspoon ground ginger.
  • Iced Shortbread - Beat 180g icing sugar with the juice of 1 small lemon together and spoon over your cooled shortbread. You can also flavour the icing with any of the flavour variations mentioned above.

Serving suggestions for shortbread

Although an excellent accompaniment to tea or coffee, shortbread can often elevate a dessert. Try serving shortbread alongside:

  • Chocolate mousse
  • Affogato
  • Lemon Posset
  • Strawberries and Cream
  • Crumbled over ice cream

Side view of Gluten-free shortbread drizzled with chocolate and dulce de leche

Other classic gluten-free British recipes:

  • Gluten-Free Eccles Cakes
  • Gluten-Free Fruit Cake
  • Rice Flour Madeira Cake
  • Vinegar Cake
  • Gluten-Free Victoria Sponge
  • Gluten-Free Scones

If you make this Gluten-Free Shortbread then please leave a comment below and/or give the recipe a rating. If you then go on to use this recipe as a launch pad for your own baking creation then I’d also love it if you’d share it and tag me on Instagram. It is so lovely for me to see your versions and variations of my recipes.

Gluten-Free Shortbread

Georgina Hartley
This Gluten-Free Shortbread recipe is the melt in mouth buttery biscuit with a touch of crunch that you know and love. A classic Scottish recipe which uses oat flour, cornmeal and tapioca flour for a wonderful taste and texture with no xanthan gum.
5 from 5 votes
Print Recipe Pin Recipe
Prep Time 10 mins
Cook Time 30 mins
Course Dessert
Cuisine Scottish
Servings 8
Calories 410 kcal

Ingredients
 
 

  • 225 g unsalted butter
  • 100 g caster sugar
  • 1 teaspoon vanilla extract
  • 150 g oat flour
  • 125 g very fine white cornmeal
  • 50 g tapioca flour
  • ½ teaspoon salt

Instructions
 

  • Pre-heat the oven to 180°C/160°C fan assisted oven/gas mark 4.
  • Line and grease a 20cm (8 inch round cake tin).
  • Beat the butter and sugar together for 3-4 minutes until light and creamy.
  • Add the vanilla extract and stir to combine.
  • Sift together the oat flour, cornmeal, tapioca flour and salt then add to the butter and sugar. Beat until it is fully incorporated.
  • Tip the dough into the baking tin and press into the tin using your hands.
  • Use a sharp knife to gently score four lines across the diagonal of the shortbread to mark out the intended slices.
  • Pierce the surface of the shortbread with the tines of a fork a couple of times to let the air escape.
  • Bake for 30 minutes until the top is just starting to turn golden.
  • Remove from oven then rest the shortbread for an hour in the tin before removing. Leave to cool completely on a cooling rack before cutting into wedges.

Video

Notes

Can’t have oat flour?

If oat flour is problematic for you then I recommend a slightly different flour combination. The recipe and ingredients list are exactly the same except remove the oat flour and tapioca flour. Instead use:
  • 175g almond flour
  • 150g very fine white cornmeal

Pro tips

  • Tip #1 Use good unsalted butter. This is the main taste of your shortbread so you need it to be the best you can find. Organic, unsalted butter direct from the farm if possible. You will notice the difference. (likewise with the vanilla extract)
  • Tip #2 If your scoring has disappeared during the bake then re-score lightly in its tin as soon as it comes out of the oven, be careful as it's very crumbly at this stage.
  • Tip #3 Leave the shortbread to cool completely before cutting. Otherwise it has a tendency to crumble. The shortbread will firm up as it cools.
I have included even more in depth tips and troubleshooting in the full post above.

Ingredient measurements

Please note that the US customary measurements for the ingredients provided are based on a conversion calculator. This recipe was tested with metric measurements and I recommend using a digital scale to weigh ingredients for the most accurate results.
READ MORE >>> Why you should always weigh vs measuring with cups 

Nutrition Information

Please note that the nutrition information provided below is an estimate based on an online nutrition calculator. It will vary based on the specific ingredients you use. Please seek a professional nutritionist’s advice for further clarification.
The nutrition serving is for 1 piece of shortbread, assuming the pie is cut into 8 servings (although these are generous slices of shortbread!!)

Nutrition

Calories: 410kcalCarbohydrates: 42gProtein: 5gFat: 25gSaturated Fat: 15gCholesterol: 60mgSodium: 153mgPotassium: 146mgFiber: 3gSugar: 13gVitamin A: 705IUCalcium: 19mgIron: 1.4mg
Have you tried this recipe?Head to the comment section and let me know what you think!

Reader Interactions

Comments

  1. Chrishy says

    April 17, 2022 at 1:18 am

    I am so excited to try this! Can I use potato flour in place of tapioca? Unfortunately, I am intolerant.

    Thank you!
    p.s. have you tried coconut flour in place of the cornmeal?

    Reply
    • Georgina Hartley says

      April 17, 2022 at 8:55 am

      You can use potato starch (not potato flour) instead of the tapioca flour. But I wouldn't recommend the coconut flour in place of the cornmeal - it would really dry out the bake.

      Reply
      • Chrishy says

        April 18, 2022 at 5:51 pm

        Thank you! I actually meant potato starch, oops. I also have arrowroot - would that be a better sub? Thank you again! 🙂

      • Georgina Hartley says

        April 18, 2022 at 7:00 pm

        Yes you can sub for arrowroot - it will work well!

  2. Kaz says

    April 02, 2022 at 10:42 am

    5 stars
    Everyone in my family (4 generations of us) LOVE this shortbread!
    I'm a lazy cook so I just whiz it all up in my processor and it works every time.
    It's really great with toasted macadamias and lemon myrtle added to it.

    Reply
    • Georgina Hartley says

      April 05, 2022 at 10:06 am

      That's great to hear! The addition of the toasted macadamias and lemon myrtle sound wonderful!!!

      Reply
  3. Rosalind Ray says

    February 11, 2022 at 8:36 am

    Hi Georgina,
    Can I use a vegan butter instead of real butter in this recipe? I use Naturli’ for everything at home and I feel it tastes quite like the butter I used to eat (many moons ago).
    Thanks for your help

    Reply
    • Georgina Hartley says

      February 11, 2022 at 11:15 am

      Hi Rosalind, I haven't baked with that brand of vegan butter (actually I've never baked with any vegan butter) so I can't say what effect that change will have on the recipe. If it works for other biscuits and cakes when you swap it in, I don't see why it wouldn't work here but I can't guarantee.

      Reply
  4. Andrea says

    December 18, 2021 at 8:55 pm

    5 stars
    hi, thank you for the wonderful recipe!!!
    this shortbread tasts like heaven.
    Greetings from Northern Germany <3

    Reply
    • Georgina Hartley says

      December 19, 2021 at 3:39 pm

      Such a pleasure - thank you!!

      Reply
  5. Iseult says

    July 28, 2021 at 11:59 am

    Thanks!

    Reply
  6. Iseult says

    July 10, 2021 at 11:01 am

    Looking forward to trying this recipe. Does very fine cornmeal mean a flour consistency - no grittiness at all?

    Reply
    • Georgina Hartley says

      July 10, 2021 at 2:06 pm

      There will always be a little grittiness as it is cornmeal but the finer ground cornmeal is preferred for this recipe.

      Reply
  7. Michelle M says

    April 23, 2021 at 9:20 am

    5 stars
    Another winner From the Larder!
    This recipe is faultless - very easy to make (even to grind my own oat flour) and tastes exactly as I remember shortbread to taste (soooo many years ago!)

    I divided the mix between two pans to create thinner 'Petticoat Tails' and I'm glad I did as this recipe is equally as more-ish too - Georgina, your site will be my downfall!

    Thank you

    Reply
  8. Helene says

    April 06, 2021 at 8:31 pm

    5 stars
    Oh wow
    This is a fantastic recipe
    At last I found a free from short bread recipe
    Belief me I tried many!!
    And none came even close to this one
    Thank you so much ❤️❤️

    Reply
    • Georgina Hartley says

      April 08, 2021 at 9:27 am

      Hi Helene - you are most welcome! Thank you for your feedback!

      Reply
  9. Sharon says

    January 01, 2021 at 12:51 am

    This is the best gluten free recipe I have found. Don’t take out of the oven too soon.

    Reply
    • Georgina Hartley says

      January 01, 2021 at 11:42 am

      Hi Sharon - that's great to hear - thank you!

      Reply
  10. Nicole says

    December 31, 2020 at 5:29 pm

    Hi Georgina, I can't do corn (intolerance) do you think tapioca flour could work in it's place?

    Reply
    • Georgina Hartley says

      January 01, 2021 at 11:42 am

      Hi Nicole, perhaps as the two flours do behave quite similarly. However, I couldn't guarantee before I have tested it. Give it a go - worse case scenario it wouldn't be a total disaster - it would still taste good I'm sure.

      Reply
  11. Marie-Louise says

    May 01, 2020 at 3:23 pm

    Hi Georgina, this looks really delicious but I don't quite have the ingredients available and the local health shop can't order them in either at the moment. Would I be able to substitute cornflour for the cornmeal (what's the difference exactly?)? And if I have some gluten free oats at home can I just blitz them in a baby food blitzer to make oat flour?

    Thanks very much,

    Marie-Louise

    Reply
    • Georgina Hartley says

      May 02, 2020 at 4:32 pm

      Hi Marie-Louise, no you can't really substitute cornflour for cornmeal. The latter is very grainy and does not hold the bake together like cornmeal does. Can you get hold of tapioca flour or arrowroot as they would be a decent substitutes. Yes, you can just blitz the oats to make oat flour. Please take a look at my post all about oat flour.

      Reply
      • Marie-Louise says

        May 11, 2020 at 10:05 am

        Hi Georgina,

        Thank you so much, that is so helpful. Yes I have tapioca flour as I'm also trialling out your Irish Soda Bread recipe, so I'll let you know how both turn out.

        This site is amazing, as I was so fed up with all the rice flour shoved into everything gluten free, and you provide lots of great alternatives with super useful explanations as to what role each flour plays, without having to source totally weird ingredients from impossible places.

      • Georgina Hartley says

        May 11, 2020 at 7:35 pm

        Thank you Marie-Louise, there is so much choice out there for alternative flours and I love experimenting and having fun with them. I look forward to hearing how the recipes turn out!

  12. susan foster says

    October 07, 2019 at 6:26 pm

    5 stars
    I halved this recipe and used it as the base for chocolate caramel shortbread - fabulous,

    Reply
    • Georgina Hartley says

      October 08, 2019 at 11:46 am

      Yes! That sounds amazing!!

      Reply
  13. Janet Barton says

    May 15, 2019 at 3:31 pm

    Hi Georgina, can I ask which white corn meal you use and where you buy it?
    Thanks, Janet

    Reply
    • Georgina Hartley says

      May 17, 2019 at 5:03 am

      Hi Janet, I use Harina Pan Blanca which I bought from Tesco but you can also get from Amazon. I've now included an Amazon affiliate link in the post if you want to check it out there.

      Reply

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About Me

Hello, so lovely of you to drop by. I am Georgina. I bake a lot, eat a lot and love writing about my gluten-free kitchen adventures here. I run a gluten-free cake business but am mostly kept busy with my 2 cats, 1 dog, 1 husband, 2 gorgeous sons and twin baby girls.

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